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The minimum EUAC for the machine and its economic life.
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Answer to Problem 10P
The minimum EUAC is
The economic life is
Explanation of Solution
Given:
The first cost is
Decline in its value per annum is
Operating and maintenance cost is
Climb in the operating and maintenance cost is
The MARR is
Calculation:
Write the expression for capital recovery.
Here, the present value is P, the annual expenditure is A, the rate of interest is i and the period is n.
Write the expression for uniform gradient series.
Here, the gradient is G.
Calculate the Equivalent Uniform Annualised Cost of capital.
Year | Fixed Cost (P) |
Salvage percent |
Salvage Value |
EUAC |
|
Now the annual cost is and the climb in cost is given.
This means that the provided cash flow will be of the uniform gradient series where
Calculate the equal uniform annualised cost of machine.
Year | EUAC |
|||
Calculate the total equivalent uniform annualized cost.
Year | EUAC of capital |
EUAC of machine |
Total EUAC |
From the table it is clearly known that the minimum EUAC is
Conclusion:
The minimum EUAC is
The economic life is
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Chapter 13 Solutions
Engineering Economic Analysis
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